A. A is liable for abetment. A by deciding to commit suicide with his wife has abetted her by counselling to commit suicide.
B. A is liable for murder and not for abetment. Where the parties mutually agreed to commit suicide, and one only accomplished that object the survivor will be guilty of murder and not for abetment only.
C. A is neither liable for murder not for abetment but attempting to murder his wife.
D. A is liable for murder as well as for abetment of murder.
✅ The correct answer is option A.